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  • 1
    Electronic Resource
    Electronic Resource
    Release of secondary sporidia ofNeovossia indica from inoculated wheat spikes (1989)
    Springer
    Plant and soil 115 (1989), S. 83-87 
    Details
    ISSN: 1573-5036
    Keywords: karnal funt ; Neovossia indica ; secondary spread ; wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Wheat-spikes inoculated withN. indica at the boot-leaf stage produced secondary sporidia when later incubated (intact/detached) under moist conditions in the laboratory. Sporidia were also released from inoculated spikes in the field where sporidial release exhibited diurnal periodicity. More sporidia were trapped between 5–6 o'clock than during the later parts of the day but no sporidia were trapped between 14–18 o'clock. However, they could be trapped at any time of the day from the detached spikes incubated under moist conditions in the laboratory. Sporidia trapped in different experiments were invariably of the allantoid type and they proved viable and infective. Maximum sporidia developed on the outer glumes of florets, and this observation was supported by scanning electron microcope studies. Sporidia developed at 15 and 20°C but not at 30°C. These findings indicated that repeated cycles of sporidial production in spikes provided more inoculum than expected from soil-borne teliospores ofN. indica.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02220697
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  • 2
    Electronic Resource
    Electronic Resource
    Production of Neovossia indica sporidia on host and non-host plants (1990)
    Springer
    Plant and soil 126 (1990), S. 85-89 
    Details
    ISSN: 1573-5036
    Keywords: durums ; Karnal bunt ; Neovossia indica ; sporidial and teliospore phases ; triticale ; weeds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Inoculated spikes of Karnal bunt resistant triticale and durums developed secondary sporidia of N. indica in counts comparable to those from Karnal bunt susceptible bread wheat cultivars. Inoculated spikes of barley, a non-host crop, also produced secondary sporidia. Intact/detached leaves of several crops and weed plants inoculated with N. indica sporidia supported the mycelial growth and sporulation of this pathogen. Uninoculated leaves of wheat and five weeds obtained from wheat-fields developed sporidia when incubated in moist saturated atmosphere in the laboratory. N. indica appeared to have two distinct phases in its life cycle. The relative significance of these phases in N. indica-life is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041372
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    Paper (German National Licenses)
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